/*
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 * and open the template in the editor.
 */
package action;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;

/**
 *
 * @author sally
 */
@MultipartConfig
@WebServlet(name = "Upload4Servlet", urlPatterns = {"/Upload4Servlet"})
public class Upload4Servlet extends HttpServlet {
    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	response.setContentType("text/html;charset=UTF-8");
	try (PrintWriter out = response.getWriter()) {
	    /* TODO output your page here. You may use following sample code. */
	    out.println("<!DOCTYPE html>");
	    out.println("<html>");
	    out.println("<head>");
	    out.println("<title>Servlet Upload4Servlet</title>");
	    out.println("</head>");
	    out.println("<body>");
	    out.println("<h1>Servlet Upload4Servlet at " + request.getContextPath() + "</h1>");
	    out.println("</body>");
	    out.println("</html>");
	}
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
	    throws ServletException, IOException {
	request.setCharacterEncoding("UTF-8");
	String path = this.getServletContext().getRealPath("/upload") + "/";
	for (Part p : request.getParts()) {
	    System.out.println(p.getContentType());
	    //  System.out.println(p.getSubmittedFileName( ));   //TomCat8才有此功能	    
	    System.out.println(this.getFileName(p));
	    System.out.println(p.getSize());
	    System.out.println(p.getName());
	    System.out.println("----------------------");
	    if (p.getName().indexOf("doc") != -1 && !"".equals(this.getFileName(p))) {
		p.write(path + this.getFileName(p));
	    }
	}
         request.getRequestDispatcher("upload4.jsp").forward(request, response);
    }

//processRequest(request, response);	

   


/**
 * Returns a short description of the servlet.
 *
 * @return a String containing servlet description
 */
@Override
	public String getServletInfo() {
	return "Short description";
    }// </editor-fold>

    String getFileName(Part p) {
	String filename = p.getHeader("Content-Disposition");
	int beginIndex = filename.indexOf("filename=\"");
	int endIndex = filename.lastIndexOf("\"");
	filename = filename.substring(beginIndex + 10, endIndex);
	int a=filename.indexOf(".");
	if (a !=-1){
	    String x=filename.substring(0,a);
	    String y=filename.substring(a+1);
	    filename=x+"01."+y;
	}
	return filename;
    }

}
